Nonequilibrium Dynamics of Coupled Quantum Systems
High Energy Physics - Theory
2009-11-07 v3 Statistical Mechanics
High Energy Physics - Phenomenology
Abstract
The nonequilibrium dynamics of coupled quantum oscillators subject to different time dependent quenches are analyzed in the context of the Liouville-von Neumann approach. We consider models of quantum oscillators in interaction that are exactly soluble in the cases of both sudden and smooth quenches. The time evolution of number densities and the final equilibration distribution for the problem of a quantum oscillator coupled to an infinity set of other oscillators (a bath) are explicitly worked out.
Cite
@article{arxiv.hep-th/0206022,
title = {Nonequilibrium Dynamics of Coupled Quantum Systems},
author = {G. Flores-Hidalgo and Rudnei O. Ramos},
journal= {arXiv preprint arXiv:hep-th/0206022},
year = {2009}
}
Comments
49 pages, 3 figures, with corrections (sec. 4) to the published version